[patch] irqchip: irq-alpine-msi: releasing the wrong variable on error

[Dan Carpenter]

The "msi_domain" variable is NULL here so it leads to a NULL
dereference.  It looks like we actually intended to free
"middle_domain".

Fixes: e6b78f2c3e14 ('irqchip: Add the Alpine MSIX interrupt controller')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c
index f871272..2538425 100644
--- a/drivers/irqchip/irq-alpine-msi.c
+++ b/drivers/irqchip/irq-alpine-msi.c
@@ -220,7 +220,7 @@ static int alpine_msix_init_domains(struct alpine_msix_data 
*priv,
                                               middle_domain);
        if (!msi_domain) {
                pr_err("Failed to create MSI domain\n");
-               irq_domain_remove(msi_domain);
+               irq_domain_remove(middle_domain);
                return -ENOMEM;
        }